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THE GUEREZA MONKEYS

567

The first with which we shall deal is Ooloftus, containing
the Monkeys known as G-uerezas. These creatures are entirely
confined to the African continent, and they are arboreal in habit.
It has "been attempted to show that their affinities are more with
the Platyrrhines than with the group in which they are really to
be placed. In favour of regarding them as nearer akin to the
American monkeys are only two facts of importance: the first is
the practical absence of the thumb, which of course recalls the

^
FIQ. 270.óBlack Celebesian Ape.     uynopit/iecua nig&r.     x -|.
condition characteristic of Aieles ; in the second place, the nostrils
in their wideness somewhat resemble those of the Platyrrhines,
They are slender Monkeys with well-marked callosities. They
have a complex sacculated stomach, resembling the large intestine
of some other animals; it is not divided into distinct chambers
like the stomach of a Ruminant or of a Whale. Correlated
apparently with this large stomach is the small development of the
cheek pouches. This genus, of which there axe about ten species,
is characterised by beautiful skins, which, are largely collected.
The Arabs have a legend to the effect that one species, when
wounded, and seeing its capture and the removal of its skin